Sash latch



May 3,1927.

- E.-H. BOONE ET AL SASH LATCH Filed Avril 15. 1925 INVENTOR 768 all ATTORNEY WITNESS:

Patented May 3, 1927.

UNITED STATES PATENT OFFICE.

EDGAR H. BOONE AND JOHN W. COOK, OF SANTA RITA, NEW MEXICO.

SASH LATCH.

Application filed April 15, 1925.

This invention relates to locks especially designed for securing window sash 1n closed position, an object being to provide a latch V for this purpose which will act to auton'iatically lock the sash soon as the window .is closed and thus eliminate danger of inadvertently leaving the window unlatched.

Another object of the invention is the provision of a latch which is simple and cheap in construction, easy to operate, will not present an unsightly appearance and by means of which window sash may be securely latched.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claim.

In the drawings Figure 1 is a fragmentary vertical sectional view showing the meeting rails of the upper and lower sash of a window with the invention applied.

Figure 2 is a view of the latch per se with the cover plate removed.

Figure 3 is a detail view of the cover late. p Figure 4 is a view similar to Figure 2 but showing the bolt in retracted fposition.

Figure 5 is a detail view 0 the operating pin showing the latter partly in section.

Referring to the drawings in detail wherein like characters of reference denote corresponding parts, the reference characters and 11 indicate respectivel the upper and lower sash of a window, t e meeting rails of which are indicated respectively at 12 and 13. The rail 13 is provided with a socket 14 for the reception of the latch and the latter comprises a casing 15 having a removable cover plate 16. The edges of the casing are notched as indicated at 17 and the cover plate 16 is provided with lugs 18 which enter the notches and aid in he ding the plate is position.

Slidingly mounted within the casing 15 and having one end projecting through an opening 19 provided 1n the casing is a bolt 20 having an outer beveled end 21. The inner end of the bolt is longitudinally slotted as shown at 22 and is adapted to receive a stud 23 which extends upwardly from the bottom of the casing 15. This stud is tapped as indicated at 24 for the reception of a fastening screw (not shown), the said of the above character.

Serial No. 23,367.

screw being adapted to pass through an opening 25 provided in the cover plate 16. The belt 20 is normally projected outward by means of a spring 26, one end of which is positioned within a slot which extends transversely of one end of the bolt 20 while the opposite end of the spring is engaged over a lug 27 which extends from the casing.

Pivot-ally mounted within the casing as shown at 28 is a lever 29 and one end of this lever extends into a notch 30 provided in one edge of the bolt 20. The opposite end of the lever 29 is provided with a longitudinally disposed slot 31 which receives a right angled extremity 32 provided at one end of an operating pin 33. The pin 33 extends through the casing 15 in a direction 0pposite the bolt 20 and is spaced from and parallel with the bolt. Secured to the outer end of the pin 33 is an operating knob 34,"

provided with an opening 37 through which the outer end of the pin and the operating knob extend, while the latter also extends through an opening provided in a guide plate 38 secured to the rail 13.

The meeting rail 12 of the upper sash is socketed as shown at 39, while a plate 40 is secured to the inner wall of a recess provided in the rail 12. A keeper is thus provided for the reception of the projected end of the bolt 20 and as the latter is beveled, the sash will be automatically latched when in closed position. In order to open the window it is only necessary to push the operating knob 34 inward so as to move the bolt to the position shown in Figure 4 of the drawings and release the sash.

The plate 40 is of substantially L-shaped cross section and the casing 15 has a flange 41 which extends outwardly from its adja cent end and overlies the horizontal portion of the plate so as to prevent the insertion of a thin blade or instrument between the meeting rails of the sash.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to make such changes as properly fallwithin the scope of the appended claim.

Having described the invention What is claimedis In a window sash latch, a casing adapted to be embedded in the upper rail of the sash, a sliding bolt arranged within the casing and adapted to project through One wall thereof and having a notch in one edge, a spring for normally holding the bolt in projected position, a lever pivoted between its ends within the casing and having one end positioned within said notch, having a longitudinal slot adjacent its other 15 end, a pin slidable through the Wall of the said lever v casing opposite the bolt and having its inner end turned downwardly and received by said slot, said pin having a longitudinal series of openings adjacent its other end, a slotted handle adjustable on said pin ant having openings adapted to register with one of the openings in the pin whereby said handle can be properly arranged with relation to any particular sash and a fastening element passed through said openings for holding the handle fixed on the pin.

In testimony whereof we affix our signatures.

EDGAR H. BOONE.

JOHN T. OOOK. 

